Following his Golden Globe–nominated debut in The Heartbreak Kid, Charles Grodin stars in this 1974 caper film, adapted by Grodin from Gerald A. Browne's novel and narrated by his character with quirky, dry humor. With the help of a wealthy, free-wheeling, thoroughly mod widow (Candice Bergen), an eccentric, scheming oil baron (Trevor Howard), an angry employee (James Mason), and a cockroach, talented burglar Howard Chesser (Grodin) attempts a daring robbery of the world’s largest clearinghouse for gems, London's Diamond Exchange at the titular address.